As ducts may expand and walls may become deformed
in the event of a fire, we recommend using flexible con-
nectors when connecting the damper to sheet steel
smoke extract ducts: The flexible connectors should
meet the specifications for the sheet steel smoke extract
duct. Be sure to follow the manufacturer's instructions.
6.2 Cover grilles
Fig. 20: Smoke control damper with cover grille
①
EK-EU
②
Cover grilles
If no smoke extract duct is connected to the smoke con-
trol damper, a cover grille (galvanised steel, mesh aper-
ture ≤ 20 mm) may be fixed instead to protect that side
of the damper.
6.3 Inspection access
The interior of the smoke control damper must remain
accessible for maintenance. Depending on the installa-
tion configuration and if the smoke control damper does
not have an inspection access panel, it may be neces-
sary to provide additional inspection access panels in
the connecting ducts.
Smoke extract duct and cover grille
Cover grilles
Smoke control damper Type EK-EU
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Содержание EK-EU
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